Improvement in the manufacture of nitro-glycerine



UNITED yST..\.TEs

PATENT OFFICE.

TAL. P. sHAEEER, 0E LOUISVILLE, KENTUCKY.

-IMPROVEMENT IN THE MANUFACTURE OF NITRO-GLVCERINE.

Specication forming part of Letters Patent No. 98,425, dated December 28, 1869.

disengaged when the temperature dissolves.`

Again, even in a warm condithe crystals. tion the free acids are held by the heavier uid, and they cannot rise to the top of the nitro-glycerine until carriedthere by a newlygenerated gas or by agitation.

It will be remembered that when the nitroglycerine is being made it assumes a speciiic gravityvless than that ofthe mixed acids, and if allo ed to remain quiet a few minutes it rises and settles upon the top of the acids. 1n practice, sometimes the acids and nitroglycerine are drawn oii' separately, and on other occasions the whole of the liquids is drawn and plunged into water, calculating one gallon of the said mixture yto seven or more gallons of pure water. v When this proceeding is done the acids become reduced in specific gravity and the nitro-glycerine falls to the bottom of the tank. In this condition there will be found more or less acids, and it 'requires considerable agitation to disengage the acids from the nitro-glycerine.

With the` view of purifying the said` compound I have devised the mechanical pats herein described.

mingles with the nitro-glycerine, and, as each atom of water comes in contact with the atoms of acids, they unite and find a union with the water G C. I v also apply air to agitato the nitro-glycerine. I fix a bellows or any known Vmeans of applying air through the pipe, and

when the air is liberated or escapes through the perforations it produces an agitation, and mixes thenitro-glycerihe with the Water O C, and in that manner brings the remaining acids in contact with the pure water. k

Having'now fully described the nature of my invention or discovery sufficiently full and distinct to enable others skilled in the art to which it belongs to make and use the same, what II claim, and desire to secure by Letters Patent as my discovery or invention, is-

'Elhe combination of mechanical parts and the process of washing and agit-ating nitroglycerine submerged in or mixed with water,

pure or impregatcd with an alkali, substantially in the manner and forthe purposes hereinbefore described.

TAL. P. SEIAFFNER.k 

